break infinite loop

Author: owenherbert-catalyst

h5p.classes.php

@@ -1028,12 +1028,17 @@ public function isValidPackage($skipContent = FALSE, $upgradeOnly = FALSE) {
           }
         }
         while ($missingLibraries = $this->getMissingLibraries($upgrades)) {
+          $foundOne = false;
           foreach ($missingLibraries as $libString => $missing) {
-            if (array_key_exists($libString, $libraries)){
-              $library = $libraries[$libString];
-              $upgrades[$libString] = $library;
+            if (array_key_exists($libString, $libraries)) {
+              $upgrades[$libString] = $libraries[$libString];
+              $foundOne = true;
             }
           }
+          // Break if we didn't find any new libraries to add (prevents infinite loop)
+          if (!$foundOne) {
+            break;
+          }
         }
 
         $libraries = $upgrades;